Bariatric surgery is considered at which threshold?

• A. BMI 30 with no comorbidities
• B. BMI 35 with comorbidities
• C. BMI 40+ with no comorbidities
• D. BMI 40+ or 35+ with comorbidities

Answer: (D)

Bariatric surgery is considered when someone has severe obesity and has not achieved meaningful weight loss with non-surgical approaches. The standard threshold is a body mass index (BMI) of 40 kg/m^2, or a BMI of 35 kg/m^2 or higher with obesity-related comorbidities such as type 2 diabetes, hypertension, sleep apnea, or dyslipidemia. This combination reflects the balance between the risks of surgery and the potential for substantial health benefits from weight loss. Therefore, the criterion that includes either 40+ in weight or 35+ with comorbidities correctly captures when surgery is considered. A lower BMI without comorbidities isn’t typically an indication, while having a higher BMI with comorbidities strengthens the case for surgery.